Yeah, that's kind of how the old Bose Triports are. Can't quite get 12hrs out of them, but I enjoy them as well. Feel naked without them on, even if I'm not listening to music. Sometimes I just have them on to block out ambient noise.

I got some time on these 40's and I like em ok the 558 are better in my opinion. I wish I had the ducats to try some noise cancelers but that is out of the question for now. I am just going to get a wye splitter to A/B them for fun. Thanks for all of the ideas!

Meh these were extra $70 as an open box item so it didn’t much to me either way:)

Modern physics would have us believe that the universe is made up of quarks, gluons, photons -- and morons

Jesus H. C H R I S T - Afterburner - can you ever be courteous and stay on topic. If you want to blather on about "Family Affair" start your own dam thread! I get tired of your inane comments. You're not clever and you're not funny and most time you're posts are completely irrelevant to the topic.

msg, I am not good at reviews but the best I can tell you is that the SENNHEISER open backs sound more like listening to speakers in a real room, imaging, sound stage etc. Sounds better to me. I really do like both but it really depends on what I am looking for at the moment. I do like the boxed in and spaced out sound of the 40's too.

Meh these were extra $70 as an open box item so it didn’t much to me either way:)

Modern physics would have us believe that the universe is made up of quarks, gluons, photons -- and morons

Jesus H. C H R I S T - Afterburner - can you ever be courteous and stay on topic. If you want to blather on about "Family Affair" start your own dam thread! I get tired of your inane comments. You're not clever and you're not funny and most time you're posts are completely irrelevant to the topic.

msg, I am not good at reviews but the best I can tell you is that the SENNHEISER open backs sound more like listening to speakers in a real room, imaging, sound stage etc. Sounds better to me. I really do like both but it really depends on what I am looking for at the moment. I do like the boxed in and spaced out sound of the 40's too.

I gotcha, Bruce.
Yeah, so for my first impression, biggest thing I notice with open design is significantly less bass. Of course, I realize I've been listening to HPs with exaggerated bottom end for years, so I'm trying to take that into account. On the Senns I've been testing from an all too gracious buddy, I now know what it's like to experience a more balanced presentation now that there's midrange presence to speak of. It just sounded tinny to me at first, but my ears adjust as I switch, and it's probably more natural what I'm hearing with the Senns than the Bose. Like you, preference depends what I'm listening to and where. I also need a closed design for isolation at work.

Bruce I'm not an HP guy, but I don't think it's a good idea to use a Y cable as you are adding a load like putting speakers in parallel or series on a regular amp.

You would need an passive A/B switch

You are probably right. I only thought of doing it because I am using this POS Emotiva "Little Ego" headphone DAC it will not accept the standard Senns mini adapter due to the sorry design from an even more pathetic company. Besides I kindda want to put phones on the ol lady too, that way we could be together while ignoring each other.

Meh these were extra $70 as an open box item so it didn’t much to me either way:)

Modern physics would have us believe that the universe is made up of quarks, gluons, photons -- and morons

Jesus H. C H R I S T - Afterburner - can you ever be courteous and stay on topic. If you want to blather on about "Family Affair" start your own dam thread! I get tired of your inane comments. You're not clever and you're not funny and most time you're posts are completely irrelevant to the topic.